Psalms 50:20

“Thou sittest, etc.] Either in the chair of Moses, or on the seat of judgment, in the great sanhedrim of the nation; or, as Aben Ezra paraphrases it, “in the seat of the scornful”; [and] speakest against thy brother; even to pass sentence upon him, to put him to death for professing faith in Christ, (<401021>Matthew 10:21); thou slanderest thine own mother’s son; the apostles and disciples of Christ, who were their brethren and kinsmen according to the flesh; and even our Lord Jesus Christ himself, who was bone of their bone, and flesh of their flesh.”

“Thou sittest and speakest against thy brother - To the general character of falsehood and slander there is now added the fact that they were guilty of this in the most aggravated manner conceivable - against their nearest relations, the members of their own families. They were not only guilty of the crime against neighbors - against strangers - against persons to whom they sustained no near relationship; but against those of their own households - those whose characters, on that account, ought to have been especially dear to them. The words ““thou sittest”” probably refer to the fact that they would do this when enjoying social contact with them; in confidential conversation; when words of…”

“speakest: Psa 31:18; Mat 5:11; Luk 22:65 slanderest: Lev 19:16; Pro 10:18; Ti1 3:11; Tit 2:3; Rev 12:10 thine own: Mat 10:21 Psalms 50:21”